Traction vehicle for molten iron ladle rail transport vehicle and traction method thereof

Abstract

The present invention provides a traction vehicle for a molten iron ladle rail transport vehicle and a traction method thereof, which solve the problems of traction and steering of the molten iron transport vehicle and the conversion and use of the traction vehicle head on a flat ground. To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: the traction vehicle for the molten iron ladle rail transport vehicle of the present invention includes a front vehicle body and a rear vehicle body, the front vehicle body and the rear vehicle body are hingedly connected, the rear portion of the rear vehicle body and the front end of the front vehicle body are respectively provided with traction hooks for connecting to the molten iron ladle transport vehicle, the molten iron ladle transport vehicle travels on a track, both sides of the track are hardened ground, the front vehicle body and the rear vehicle body are respectively provided with a pair of rubber drive wheels, the paired rubber drive wheels are located on both sides of the track, and a track detector is provided below the front vehicle body.

Description

Technical Field

[0001] The invention relates to a traction vehicle for a molten iron ladle rail transport vehicle and a traction method thereof, belonging to the field of road-rail dual-use. Background Art

[0002] Currently, steel mills heat iron ore to a high temperature to melt it and form molten iron, which is then transported to the rolling mill and rolled into the required shape.

[0003] The ladle rail transporter is a transport device that transports molten iron from the steel plant's blast furnace to the rolling mill. Currently, the ladle rail transporter is pulled by a rail train.

[0004] The traction process is accomplished by the locomotive, which travels back and forth within a limited track, requiring multiple track changes. Due to the limited space within the steel mill, this results in lengthy track changes after each molten iron transport. This significantly hinders the efficiency of molten iron transportation and restricts productivity improvements in steel mills and rolling mills. Summary of the Invention

[0005] The present invention provides a traction vehicle for a molten iron ladle rail transport vehicle and a traction method thereof, which solve the problems of traction steering of the molten iron transport vehicle and conversion and use of the traction locomotive head on a flat ground.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides a traction vehicle for a ladle rail transport vehicle, comprising a front vehicle body and a rear vehicle body, wherein the front vehicle body and the rear vehicle body are hingedly connected, a rear portion of the rear vehicle body and a front portion of the front vehicle body are respectively provided with traction hooks for connecting to the ladle transport vehicle, the ladle transport vehicle travels on a track, both sides of the track being hardened ground, the front vehicle body and the rear vehicle body are respectively provided with a pair of rubber drive wheels, the paired rubber drive wheels being located on both sides of the track, and a track detector is provided below the front vehicle body;

[0008] The track detector includes a transverse frame, a facing sensor and a control sensor. There are multiple control sensors. The transverse frame is set under the front car body or the rear car body and above the track. The transverse frame is arranged perpendicular to the track. The facing sensor is in the middle position of the transverse frame and directly above the track. The control sensors are distributed on both sides of the facing sensor. The facing sensor and the control sensor are connected to the steering control device.

[0009] According to the traction vehicle for the molten iron ladle rail transport vehicle, the facing sensor and the control sensor are cameras for taking pictures of the lower part.

[0010] According to the traction vehicle for the molten iron ladle rail transport vehicle, the facing sensor and the control sensor are metal distance sensors. When the facing sensor receives a track magnetic signal, it transmits the detection signal to the steering control device. When it senses a magnetic signal, it transmits the detection signal to the steering control device for steering.

[0011] According to the traction vehicle for the molten iron ladle rail transport vehicle, a steering hydraulic cylinder is provided between the front vehicle body and the rear vehicle body.

[0012] According to the traction vehicle for the ladle rail transport vehicle, it is characterized in that the front vehicle body is provided with a track detector behind the two rubber driving wheels, and the rear vehicle body is provided with a track detector behind the two rubber driving wheels.

[0013] According to the traction vehicle for the molten iron ladle rail transport vehicle, the steering control device is a hydraulic controller, and is connected to the hydraulic inlet and outlet control valves of the steering hydraulic cylinder.

[0014] The traction method of the traction vehicle of the molten iron ladle rail transport vehicle of the present invention is as follows:

[0015] The following steps are included:

[0016] 1) Drive the traction vehicle onto the ladle transport track, align the sensor on the track detector of the traction vehicle with the track, and connect the ladle rail transport vehicle to the traction vehicle;

[0017] 2) The traction vehicle pulls the ladle rail transport vehicle. The facing sensor of the track detector detects that the track is at the bottom, the steering control device does not operate, and the traction vehicle pulls the ladle rail transport vehicle along the track;

[0018] 3) When the track bends and turns, the sensor facing the track detector detects that the track is deviating to one side. At the same time, the control sensor on the deviating side detects that the track is approaching, and transmits the deviation signal to the steering control device. The steering control device controls the steering hydraulic cylinder according to the deviation direction, and the traction vehicle turns to drive;

[0019] 4) When running to the straight track, the facing sensor of the track detector detects that the track is directly below. At the same time, the control sensor on the deviated side detects the track principle and transmits the alignment signal to the steering control device. The steering control device controls the steering hydraulic cylinder to resume action according to the facing direction, and the traction vehicle travels in a straight line.

[0020] The advantages of the present invention are that the rail tractor of the molten iron ladle transport vehicle is replaced with a rubber-wheeled tractor that travels on a flat ground surface, so that the rail-changing traction operation can be realized in a smaller space, thereby improving the efficiency of molten iron transportation and traction without changing the size of the site.

[0021] The tractor is equipped with an automatic tracking and steering mechanism, which can reduce the steering efficiency when the molten iron transport vehicle is towing and improve the safety during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the product structure diagram of the present invention,

[0023] Figure 2 This is a top view of the arrangement of the track detector of the present invention.

[0024] Figure 3 It is a control circuit connection diagram of the track detector of the present invention.

[0025] Reference numerals:

[0026] 1. Front body, 2. Rear body, 3. Articulated parts, 4. Rubber drive wheels, 5. Track detector, 51. Transverse frame, 52. Facing sensor, 53. Control sensor, 6. Steering hydraulic cylinder, 7. Steering control device, 8. Front traction coupler, 9. Rear traction coupler, 10. Track. Implementation Method

[0027] The specific content of the present invention will be further described below:

[0028] The traction vehicle for the ladle rail transport vehicle of the present invention comprises a front body 1 and a rear body 2, which are hingedly connected to each other by a hinge 3. The vehicle is characterized in that the rear portion of the rear body 2 and the front end of the front body 1 are respectively provided with a traction hook for connecting to the ladle transport vehicle, and the ladle transport vehicle travels on a track with hardened ground on both sides. The front body 1 and the rear body 2 are respectively provided with a pair of rubber drive wheels 4, and the paired rubber drive wheels 4 are located on both sides of the track. A track detector 5 is provided below the front body 1. A steering hydraulic cylinder 6 is provided between the front body 1 and the rear body 2, and the signal output line of the steering control device 7 is connected to the inlet and outlet liquid pipeline solenoid valve of the steering hydraulic cylinder 6, and the inlet and outlet liquid pipelines are connected to the hydraulic station.

[0029] To further explain, the track detector 5 includes a transverse frame 51, a facing sensor 52 and a control sensor 53. There are multiple control sensors 53. The transverse frame 51 is set below the front car body 1 or the rear car body 2 and is above the track. The transverse frame 51 is arranged perpendicular to the track. The facing sensor 52 is in the middle position of the transverse frame 51 and is directly above the track. The control sensor 53 is distributed on both sides of the facing sensor 52. The facing sensor 52 and the control sensor 53 are connected to the steering control device 7.

[0030] The front vehicle body 1 is provided with track detectors 5 behind the two rubber driving wheels 4 , and the rear vehicle body 2 is provided with track detectors 5 behind the two rubber driving wheels 4 .

[0031] There are many ways to detect the facing sensor 52 and the control sensor 53. A camera can be used to shoot the track below through video shooting. After that, the distance relationship and the deviation angle of the track in the video are used to determine the track turning, so as to transmit the turning signal to the steering control device to realize the turning.

[0032] The facing sensor 52 and the control sensor 53 may also be Metal distance sensor The specific change in distance from the rails can be used to determine the track offset. Metal sensors use the principle of electromagnetic induction to detect the presence of metal objects. A transmitter emits electromagnetic waves at a high frequency. When these waves strike a metal object, they induce a current. The receiver detects this current and sends a signal, indicating the presence of a rail. By determining the magnitude of the induced current, the distance and position are determined.

[0033] Specifically, when the facing sensor 52 receives the track magnetic signal, it transmits the detection signal to the steering control device 7 , and when it senses the magnetic signal, it transmits the detection signal to the steering control device 7 to turn.

[0034] In the present invention, the steering control device 7 is a hydraulic controller, and is connected to the hydraulic inlet and outlet control valves of the steering hydraulic cylinder 6 .

[0035] The traction method of the molten iron ladle rail transport vehicle traction vehicle of the present invention comprises the following steps:

[0036] 1) Drive the traction vehicle onto the ladle transport track, align the sensor 52 on the track detector 5 of the traction vehicle with the track, and connect the ladle rail transport vehicle to the traction vehicle;

[0037] 2) The traction vehicle pulls the ladle rail transport vehicle, the facing sensor 52 of the track detector 5 detects that the track is at the bottom, the steering control device 7 does not operate, and the traction vehicle pulls the ladle rail transport vehicle along the track;

[0038] 3) When the track bends and turns, the facing sensor 52 of the track detector 5 detects that the track is deviating to one side. At the same time, the control sensor 53 on the deviating side detects that the track is approaching, and transmits the deviation signal to the steering control device 7. The steering control device 7 controls the steering hydraulic cylinder 6 according to the deviation direction, and the traction vehicle turns.

[0039] 4) When the vehicle reaches the straight track, the facing sensor 52 of the track detector 5 detects that the track is directly below. At the same time, the control sensor 53 on the deviated side detects the track principle and transmits the alignment signal to the steering control device 7. The steering control device 7 controls the steering hydraulic cylinder 6 to resume operation according to the facing direction, and the traction vehicle travels in a straight line.

[0040] The advantages of the present invention are that the rail tractor of the molten iron ladle transport vehicle is replaced with a rubber-wheeled tractor that travels on a flat ground surface, so that the rail-changing traction operation can be realized in a smaller space, thereby improving the efficiency of molten iron transportation and traction without changing the size of the site.

[0041] The tractor is equipped with an automatic tracking and steering mechanism, which can reduce the steering efficiency when the molten iron transport vehicle is towing and improve safety during driving.

Claims

1. A traction vehicle for a ladle rail transport vehicle, comprising a front vehicle body (1) and a rear vehicle body (2), wherein the front vehicle body (1) and the rear vehicle body (2) are hingedly connected via a hinge (3), and wherein: The rear part of the rear car body (2) and the front end of the front car body (1) are respectively provided with traction hooks for connecting to a ladle conveyor vehicle. The ladle conveyor vehicle travels on a track. Both sides of the track are hardened ground. The front car body (1) and the rear car body (2) are respectively provided with pairs of rubber drive wheels (4). The paired rubber drive wheels (4) are located on both sides of the track. A track detector (5) is provided below the front car body (1). The track detector (5) includes a transverse frame (51), a facing sensor (52) and a control sensor (53). There are multiple control sensors (53). The transverse frame (51) is arranged below the front vehicle body (1) or the rear vehicle body (2) and is above the track. The transverse frame (51) is arranged perpendicular to the track. The facing sensor (52) is located in the middle of the transverse frame (51) and is directly above the track. The control sensors (53) are distributed on both sides of the facing sensor (52). The facing sensor (52) and the control sensor (53) are connected to the steering control device (7).

2. The traction vehicle for the ladle rail transport vehicle according to claim 1, characterized in that: The facing sensor (52) and the control sensor (53) are cameras for photographing the lower part.

3. The traction vehicle for the ladle rail transport vehicle according to claim 1, characterized in that: The facing sensor (52) and the control sensor (53) are metal distance sensors. When the facing sensor (52) receives a track magnetic signal, it transmits a detection signal to the steering control device (7). When a magnetic signal is sensed, it transmits a detection signal to the steering control device (7) to turn.

4. The traction vehicle for the ladle rail transport vehicle according to claim 1, characterized in that: A steering hydraulic cylinder (6) is provided between the front vehicle body (1) and the rear vehicle body (2), and a signal output line of the steering control device (7) is connected to the solenoid valve of the inlet and outlet liquid pipelines of the steering hydraulic cylinder (6).

5. The traction vehicle for the ladle rail transport vehicle according to claim 1, characterized in that: The front vehicle body (1) is provided with track detectors (5) behind the two rubber driving wheels (4), and the rear vehicle body (2) is provided with track detectors (5) behind the two rubber driving wheels (4).

6. The traction vehicle for the ladle rail transport vehicle according to claim 4, characterized in that: The steering control device (7) is a hydraulic controller and is connected to the hydraulic inlet and outlet control valves of the steering hydraulic cylinder (6).

7. A traction method for a traction vehicle for a molten iron ladle rail transport vehicle according to claim 1, characterized in that: The following steps are included: 1) driving the traction vehicle onto the ladle transport track, aligning the sensor (52) on the track detector (5) of the traction vehicle with the track, and connecting the ladle track transport vehicle to the traction vehicle; 2) The traction vehicle tows the ladle rail transport vehicle, the facing sensor (52) of the track detector (5) detects that the track is at the bottom, the steering control device (7) does not operate, and the traction vehicle tows the ladle rail transport vehicle along the track; 3) When the track is bent and turned, the facing sensor (52) of the track detector (5) detects that the track is deviating to one side, and at the same time, the control sensor (53) on the deviating side detects that the track is approaching, and transmits the deviation signal to the steering control device (7). The steering control device (7) controls the steering hydraulic cylinder (6) to operate according to the deviation direction, so that the traction vehicle turns and drives; 4) When the vehicle reaches the straight track, the facing sensor (52) of the track detector (5) detects that the track is directly below. At the same time, the control sensor (53) on the deviated side detects the track principle and transmits the alignment signal to the steering control device (7). The steering control device (7) controls the steering hydraulic cylinder (6) to resume its action according to the facing direction, and the traction vehicle travels in a straight line.

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